Seriously - A good TA is essential to business travel. Time is money and there is nothing better than calling the 24-hour line for your TA while your diverted aircraft taxis to the terminal so that you have the last seat on the next flight out when you disembark.

Was your last employer's TA in-house or an outside vendor? If outside, call them up and see if they won't handle your work. If inside, call them up and get recommendations for independents who provide the same level of service.

Then interview the prospective TA's, get references and talk with them.

The more time you spend staring at search engines, the less time you are spending making money.